Hydraulic power transmitter



Jam 2 J, FRASER Er AL Lgggm HYDRAULIC POWER TRANSMITTER Filed May 25, 1931 .Patented Jan 24, 1934 Y UNITED STATES PATENT-OFFICE HYDRAULIC POWER TRANSMITTER James Fraser and Duncan Campbell, Glasgow, Scotland Application May 25, 1931, Serial No. 539,972, and in Great Britain April 25, 1931 2 Claims. (Cl. 60-54) This invention relates to an improved hydraulic vides an inlet to the conduit M. m is the supplypower transmitter, and is an improvement in or pipe connected to the space W. modiiication oi' the invention described in our The hub F1l runs on radial ball-bearings X carearlier application for Patent No. 533,858 filed ried in the casing I, and is provided with a thrust- 29th April 1931 and has for its object inter alia, ball-race Y carried on a centre-piece Z, this 6o to simplify the construction and assembling of thrust-ball-race Y taking up the thrust between the various parts of the transmitter, and the arthe impeller B and the hub F1. rangement of ball-bearings for the rotating parts, The driven-shaft N, which forms part of the and also means for indicating the amount of hub F1, is suitably carried in a radial ball-race b,

fluid in the gear, all ashereinafter described with and thrust-ball-race c, carried in the casing d, 65

reference to the' drawing and pointed out in the and end-cap e, respectiely, a stalling-box f beclaims. f Ving provided on the en -cap e.

In order that our invention may be properl The impeller operating fork J engages with a understood and readily carried into effect, we collar g attached to the impeller B, a thrust-ballhave hereunto appended a sheet of drawings, of race h being provided and heid in DOSitiOn by a 70 which screw-collar y.

Figure l is a cross sectional elevation of trans- A gauge EiaSS k iS provided, and iS-Suitably conmitter. nected to the top and bottomrof the conduit M Figure 2 is an end view of Figure 1, looking in for indicating Itlh@ quantity 0f flltliidwin the beir. 7

the direction of arrow a. The working c amber or condui may 5 According to this invention and referring to vided intO a number 0f passages by radial division the drawing, C is the driving-shaft which is carplates S. ried on radial ball-bearings T and O at each In DiaCe 0f, aS in 0111 earlier applicatin, Using end of the driving-shaft C, the ball-bearings T Onllly Wffte fOr dlving till@ tlanSmSSiOn gear, any

being carried on an end-cap Q, and the ball- Ot er 11i may e emp Oye 80 bearings O being supported within a recess U 1l iS a pitOt-tllbe Which may 'be placed in anir formed in the hub F1 of the driven-dise F. A luitbletpsrition irl; condllllit hg for the passage of stuing box V is provided at the outward end of ui in o e wor ing C am er. l the driving-shaft C, and is suitably attached to Having now particularly described and ascerthe end-cap Q. .tained the nature oi' our said invention and in 86- The central boss of the lmpeller B is suitably what manner the same is to be performed, we keyed to the driving-shaft C, but is capable of declare that What We claim is:- sliding longitudinally, and it is provided with ra- 1. In a hydraulic power transmitter, a casing, dial spokes or division-plates B1, which extend a. driving shaft in one end of the casing, an imwithin the impeller B until they meet the impeller mounted in the casing, and having impeller peller-blades A. The impeller-blades A form llldes, tsle fstaid imptellclar slidalllily keyel tto the art of a casting A1, which is attached to the irn- 1 Ving a a Cen la 0018 aving S a iOnaI'Y gener B by Screws A2, or other convenient means. blades secured toone face thereof and a ring plate The turbinemlades D, forming part of a cast carried on the opposite face, a center piece having D1, are fixed to the driven-disc F by means n g anl ltelal @Pnmgtfo mounting. s ecld of screws D2, or other convenient means. rmg p a e: e Sa1 cen ra 901'@ carne m e The stationary-blades G form part of a casting opmng Wlth the Img plates 1n spaced apajr" re G, and are xed to the cover p1ate G2 by means lation for forming an internal chamber, division f Screw G3 or otherwise the castin G1 bein plates secured to the casing and center piece for o .a 1 g g holding the same in spaced apart relation to com- 100 Smtably xed to the central'core R 1 'municate with the internal chamber and the im- The reverseblades E form p91 of 9 Img V peller, means for connecting the exterior and the and are suitably xed to the casting D1 by means internal chamber to Supply a liquid to the im 0f screws El or other 16anspeller, a driven shaft supported in the opposite The central core R1 1s provided Wlth a coverend of the casing, a dise carried by the driven 105 tplllate R1 suitably 1aittched thereto bydesrewhl haftbiavin; scizliirei thereto at, settcllftlahead ture Cen ie-plece Ging aSO DI'OVl W1 a ine a es n ec a 'gnmen wi e impeller cover-plate R4 suitably fixed thereto by screws R5. blades for the passage of the liquid to rotate the 0r other Suitable IneaIlS, a Space W being formed driven shaft in one direction, the said disc havbetween the cover-plates R2 and R4, which proing secured thereto a set of reverse blades ar- 110 ranged concentric to the stationary blades, and means for shifting the impeller with the impeller blades into alignment with said stationary and reverse blades for passage of the liquid to drive the driven shaft in the reverse direction.

2. In a hydraulic power transmitter, a casing, a driving shaft in the casing, an impeller mounted in the casing and having al central boss slidably keyed to the driving shaft and provided with radial division plates, a casting mounted on the outer portion of the impeller and having impeller blades thereon.- disppsed at the outer ends of the radial division plates; a central core having stationary blades secured to one face thereof and a ring plate carried on the opposite face, a center piece having an internal opening for mounting a second ring plate, the said central core carried in the opening with the ring plates in spaced apart relation for forming an internal chamber, division plates secured to the casing and center piece for holding the same rigid and in spaced apart relation to communicate with the internal chamber and impeller, a conduit to provide a passageway between the exterior and internal chamber to supply a liquid to the impeller, a driven shaft supported in the casing in i n with said driving shaft, adisc carried by the driven shaft having secured thereto a set of ahead turbine blades to register directly with the impeller blades for the passage of the liquid to rotate the driven shaft in one direction, the said dise having secured thereto a set of reverse blades arranged concentric to the stationary blades, and means for shifting the impeller with 

